Five-kingdom classification

In Class 11 Biology, Five-kingdom classification explains how living organisms are grouped under the chapter Biological Classification. Students study Whittaker’s five kingdoms—Monera, Protista, Fungi, Plantae and Animalia—and compare them using criteria such as cell type, number of cells, body organisation, mode of nutrition, reproduction and evolutionary relationships. The topic also helps learners distinguish prokaryotic and eukaryotic organisms and understand why fungi form a separate kingdom from plants.

01According to Carl Woese's classification, which two new kingdoms in the 'six kingdoms' were formed from Monera?

0 reads0 helpful★ – (0)

Answer and explanation

Correct answer: B. Archaebacteria and Eubacteria

Direct answer: B is correct. In the five-kingdom system, Monera contained prokaryotic organisms. Carl Woese used molecular evidence, especially differences in ribosomal RNA, to show that the prokaryotes were not one uniform evolutionary group. They were separated into Archaebacteria, now commonly called Archaea, and Eubacteria, also called true bacteria. A is wrong because Protista and Fungi were already separate eukaryotic kingdoms and were not the two groups made by splitting Monera. C is wrong because Plantae and Animalia are multicellular eukaryotic kingdoms. D is wrong because viruses are acellular and are not one of the two kingdoms formed from Monera. Memory cue: six kingdoms = Monera split into Archaebacteria and Eubacteria, while the other four are Protista, Fungi, Plantae and Animalia.

Question & solution Rate / view replies Report an issue

सुधार सुझाएँ / Earn

Practice questions

01According to Carl Woese's classification, which two new kingdoms in the 'six kingdoms' were formed from Monera?

Add Muft Shiksha to your Home Screen

Five-kingdom classification

Practice questions

Analytics choices